Prosthetic adaptor



FIG. 1 is a perspective view of the prosthetic adaptor;

FIG. 2 is a top plan view of the prosthetic adaptor;

FIG. 3 is a front elevation view of the prosthetic adaptor;

FIG. 4 is a rear elevation view of the prosthetic adaptor;

FIG. 5 is a left elevation view of the prosthetic adaptor;

FIG. 6 is a right elevation view of the prosthetic adaptor; and,

FIG. 7 is a bottom plan view of the prosthetic adaptor taken along lines 2-7 of FIG. 3.

The broken line showing is included for the purpose of illustrating environment and forms no part of the claimed design. 

CLAIM The ornamental design for a prosthetic adaptor, as shown and described. 